TM 10-4610-232-12
Table 2-23. Maximum Product TDS as % of Water Source TDS
FRESH WATER
BRACKISH WATER
SEA WATER
Temperature
Up to 1000 ppm
Temperature 1000 is 10,000 ppm
Temperature
Over 10,000 gpm
32-34 F
1.25
(0.0125)
32-35 F
1.5
(0.015)
32-35 F
2.0
(0.010)
35-37 F
1.3
(0.013)
36-39 F
1.55
(0.0155)
36-39 F
2.1
(0.011)
38-40 F
1.35
(0.0135)
40-43 F
1.6
(0.016)
40-43 F
2.2
(0.012)
41-43 F
1.4
(0.014)
44-47 F
1.65
(0.0165)
44-47 F
2.3
(0.013)
44-46 F
1.45
(0.0145)
48-51 F
1.7
(0.017)
48-51 F
2.4
(0.014)
47-49 F
1.5
(0.015)
52-55 F
1.75
(0.0175)
52-55 F
2.5
(0.025)
50-52 F
1.55
(0.0155)
53-55 F
1.6
(0.016)
56-61 F
1.7
(0.017)
56-63 F
1.8
(0.018)
56-59 F
2.6
(0.026)
62-66 F
1.8
(0.018)
64-70 F
1.9
(0.019)
60-64 F
2.7
(0.017)
67-72 F
1.9
(0.019)
71-77 F
2.0
(0.020)
65-68 F
2.8
(0.028)
73-77 F
2.0
(0.020)
69-73 F
2.9
(0.029)
74-77 F
3.0
(0.030)
78-81 F
2.1
(0.021)
78-81 F
2.1
(0.021)
82-84 F
2.2
(0.022)
82-84 F
2.2
(0.022)
78-81 F
3.1
(0.031)
85-88 F
2.3
(0.023)
85-88 F
2.3
(0.023)
82-84 F
3.2
(0.032)
89-91 F
2.4
(0.024)
89-91 F
2.4
(0.024)
85-88 F
3.3
(0.033)
92-95 F
2.5
(0.025)
92-95 F
2.5
(0.025)
89-91 F
3.4
(0.034)
92-95 F
3.5
(0.035)
Examples
Fresh water 75 ppm at 38F
Adjust for temperature - 1.07 x 75 ppm = 80.25 or 80 ppm
Maximum TDS - 1.35% or 0.0135
0.0135 x 80 = 1.08 ppm or 1 ppm
1 ppm is maximum product water TDS, for this condition.
Brackish water 3500 ppm at 63F
Maximum TDS - 1.8% or 0.018
0.018 x 3500 = 63 ppm
63 ppm is maximum product water TDS for this condition.
Sea water 47,000 ppm at 95F
Maximum TDS - 3.5% or 0.035
0.035 x 47,000 = 1645 ppm
1645 ppm is not consumable under Army Regulations.
Repurify as brackish water
Brackish water 1645 ppm at 95F
Maximum TDS - 2.5% or 0.0250.025 x 1645 = 41.12 or 41 ppm
41 ppm is maximum water TDS for this condition.
Change 12 2-84.1/(2-84.2 blank)
